The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 04, 2017
Filed:
Mar. 04, 2016
Asahi Glass Company, Limited, Chiyoda-ku, JP;
Wataru Kasai, Chiyoda-ku, JP;
Masami Suzuki, Chiyoda-ku, JP;
Asahi Glass Company, Limited, Chiyoda-ku, JP;
Abstract
A mold release film to be disposed on a cavity surface of a mold in a method for producing a semiconductor package wherein a semiconductor element is disposed in the mold and encapsulated with a curable resin to form a resin-encapsulation portion, characterized in that it has a first surface to be in contact with the curable resin at the time of forming the resin-encapsulation portion, and a second surface to be in contact with the cavity surface, at least one of the first surface and the second surface has irregularities formed thereon, and the surface having irregularities formed thereon, has an arithmetic mean roughness (Ra) of from 1.3 to 2.5 μm and a peak count (RPc) of from 80 to 200; and a process for producing a semiconductor package by using the mold release film.